# Multiple populations of Hβ emission line stars in the Large Magellanic Cloud cluster NGC 1971

@article{Piatti2020MultiplePO,
title={Multiple populations of H$\beta$ emission line stars in the Large Magellanic Cloud cluster NGC 1971},
author={Andr{\'e}s E. Piatti},
journal={Astronomy \& Astrophysics},
year={2020}
}
• A. Piatti
• Published 2 November 2020
• Physics
• Astronomy & Astrophysics
We revisited the young Large Magellanic Cloud star cluster NGC 1971 with the aim of providing additional clues to our understanding of its observed extended main-sequence turnoff (eMSTO), a feature commonly seen in young star clusters that has recently been argued to be caused by a real age spread similar to the cluster age (∼160 Myr). We combined accurate Washington and Strömgren photometry of stars with high membership probability to explore the nature of this eMSTO. From different ad hoc…

## References

SHOWING 1-10 OF 39 REFERENCES

• A&AS,
• 2000

### Observational hints of a real age spread in the young LMC star cluster NGC 1971

• Physics, Geology
• 2017
We report that the serendipitous young Large Magellanic Cloud cluster NGC 1971 exhibits an extended main-sequence turn-off (eMSTO) possibly originated mostly by a real age spread. We used CT1

### Stellar activity with LAMOST – II. Chromospheric activity in open clusters

• Physics
• 2018
We use the LAMOST spectra of member stars in Pleiades, M34, Praesepe, and Hyades to study how chromospheric activity vary as a function of mass and rotation at different age. We measured excess

### Strömgren metallicities for intermediate-age and old star clusters

We report results that show that the straightforward star cluster metallicities obtained from Strömgren vby photometry are age-dependent and need to be corrected for further use. This outcome arises

### Study of color-magnitude diagram of star cluster SL 506

• Physics
• 2020
We report a study of the color-magnitude diagram (CMD) of globular cluster SL 506, which shows extended main sequence turn-off (eMSTO). The CMD is derived from deep F450W (B) and F555W (V) images of

### Extended main sequence turnoffs in open clusters as seen by Gaia – II. The enigma of NGC 2509

• Physics
Monthly Notices of the Royal Astronomical Society
• 2019
We investigate the morphology of the colour–magnitude diagram (CMD) of the open cluster NGC 2509 in comparison with other Galactic open clusters of similar age using Gaia photometry. At

### Formation of Hydrogen Emission Lines in the Magnetospheres of Young Stars

• Physics
Astronomy Letters
• 2019
The formation of hydrogen emission lines in the magnetospheres of young stars is considered. The magnetosphere is assumed to be formed by a dipolar magnetic field whose axis is aligned with the

### Combined Effects of Rotation and Age Spreads on Extended Main-Sequence Turn Offs

• Physics, Geology
The Astrophysical Journal
• 2019
The extended main-sequence turn offs (eMSTOs) of several young to intermediate age clusters are examined in the Magellanic Clouds and the Milky Way. We explore the effects of extended star formation

### INTERSTELLAR REDDENING RELATIONS IN THE UBV, UVBY, AND GENEVA SYSTEMS.

• Physics
• 1976
Stellar energy fluxes for various spectral types have been combined with filter transmission curves and several different laws of interstellar absorption to obtain reddening relations and the ratio